1. communication is an important last step of the scientific method. what is the best reason to communicate conclusions?
a. to increase scientific knowledge
b. to prevent people form doing the same experiments
c. to make sure p
d. there is no reason to communicate conclusions
2. all are part of the scientific method except:
a. experiment
b. hypothesis
c. profit
d. analysis
3. a part of an experiment that does not change is:
a. constant
b. dependent variable
c. independent variable
d. data
4. which would be an appropriate first step to the scientific method?
a. experiment
b. conclusion
c. question
d. analysis
4. what tool would be appropriate for measuring the length of a classroom?
a. triple beam balance
b. meter stick
c. micrometer
d. graduated cylinder

Complete the sentence. the lower the hydrogen ion concentration, the the ph. higher lower closer to 7 closer to 0

Given sno2 + 2h2 - sn + 2h20 tin oxide reacts with hydrogen to produce tin and water. how many moles of sno2 are needed to produce 500.0 grams of sn?

The last few miles of the marathon are the most difficult for heather, her hair plastered to her head, sweat clinging to her arms, and her legs already feeling as if they had nothing left, just dead weight. after grabbing a cup of ice water, she feels the ice cubes smash against her nose as she gulps some cool refreshment and keeps on running. in these last few miles, the breeze kicks up and she finally feels some coolness against her skin. drips of sweat, once clinging to her forehead, now spill down, and heather feels more pain as the sweat flows into her eyes.which of the following is the most likely reason why the ice struck heather’s nose when she took a drink? a) water can function as a solvent. b) water can store large amounts of heat. c) water can moderate temperatures through evaporative cooling. d) the density of water decreases when it freezes. e) water has a cohesive nature.sweat remained on heather’s forehead and arms because of the a) high salt content of sweat b) cohesive nature of water c) ability of water to moderate heat d) high evaporative cooling effect of water e) ability of water to act as a solvent